U.S. patent application number 15/492047 was filed with the patent office on 2017-08-03 for powder dispersant, and powder dispersion composition and cosmetic product containing the same.
This patent application is currently assigned to SAKAMOTO YAKUHIN KOGYO CO., LTD.. The applicant listed for this patent is SAKAMOTO YAKUHIN KOGYO CO., LTD.. Invention is credited to Ryosuke TOYOSHIMA, Takeshi YAMADA.
Application Number | 20170216187 15/492047 |
Document ID | / |
Family ID | 56013812 |
Filed Date | 2017-08-03 |
United States Patent
Application |
20170216187 |
Kind Code |
A1 |
TOYOSHIMA; Ryosuke ; et
al. |
August 3, 2017 |
POWDER DISPERSANT, AND POWDER DISPERSION COMPOSITION AND COSMETIC
PRODUCT CONTAINING THE SAME
Abstract
A powder dispersant includes an ester compound of a polyglycerol
having an average degree of polymerization of the polyglycerol,
calculated from its hydroxyl value, in the range 2 to 20, a
monovalent carboxylic acid or at least one derivative thereof, and
a divalent carboxylic acid or at least one derivative thereof.
Inventors: |
TOYOSHIMA; Ryosuke; (Osaka,
JP) ; YAMADA; Takeshi; (Osaka, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SAKAMOTO YAKUHIN KOGYO CO., LTD. |
Osaka |
|
JP |
|
|
Assignee: |
SAKAMOTO YAKUHIN KOGYO CO.,
LTD.
Osaka
JP
|
Family ID: |
56013812 |
Appl. No.: |
15/492047 |
Filed: |
April 20, 2017 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
PCT/JP2015/081801 |
Nov 12, 2015 |
|
|
|
15492047 |
|
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
C11C 3/003 20130101;
C09D 5/03 20130101; A61Q 17/04 20130101; A61K 8/85 20130101; C09D
17/00 20130101; A61K 8/062 20130101; A61K 8/064 20130101; A61K
2800/262 20130101; A61K 8/39 20130101; A61Q 1/02 20130101; A61Q
1/12 20130101; A23D 9/00 20130101; A61K 8/04 20130101 |
International
Class: |
A61K 8/85 20060101
A61K008/85; C11C 3/00 20060101 C11C003/00; A61Q 1/12 20060101
A61Q001/12; A61Q 17/04 20060101 A61Q017/04; A61K 8/04 20060101
A61K008/04; A61K 8/06 20060101 A61K008/06 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 17, 2014 |
JP |
2014-233160 |
Claims
1. A powder dispersant comprising: an ester compound of a
polyglycerol having an average degree of polymerization of the
polyglycerol, calculated from its hydroxyl value, in the range 2 to
20, a monovalent carboxylic acid or at least one derivative
thereof, and a divalent carboxylic acid or at least one derivative
thereof.
2. A powder dispersion composition comprising the powder dispersant
according to claim 1.
3. A cosmetic product comprising the powder dispersant according to
claim 1.
4. A cosmetic product comprising the powder dispersion composition
according to claim 2.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation application under 35
U.S.C. 120 of International Application PCT/JP2015/081801 having
the International Filing Date of Nov. 12, 2015, and claims the
priority of Japanese Patent Application No. 2014-233160, filed on
Nov. 17, 2014. The identified applications are fully incorporated
herein by reference.
BACKGROUND OF THE INVENTION
[0002] Technical Field
[0003] The present invention relates to a powder dispersant, and a
powder dispersion composition and a cosmetic product containing the
powder dispersant.
[0004] Background Art
[0005] Powders contained in various products such as cosmetic
products and industrial materials, while exerting various
functions, have high aggregation properties and therefore it is
necessary to maintain uniform dispersion in such a product and
stability over time, for which various dispersants have been
studied. Of the cosmetic products, sunscreen cosmetics and the like
having a UV protection function contain a powder as a UV absorbing
scattering agent, where a micronized powder having a particle size
of 10 to 500 nm is used for purposes such as increasing the UV
absorption capacity of the powder and preventing the powdery finish
when applied to the skin so as to improve the transparency (see
Japanese Patent Laid-Open No. 08-3026, hereinafter referred to as
Patent Literature (PL) 1). Further, in order to improve the UV
protection function and the transparency, it is necessary to
uniformly disperse the powder, for which a powder dispersant is
contained therein. As a powder dispersant, ricinoleic acid and
hydroxystearic acid (see Japanese Patent Laid-Open No. 06-39272,
hereinafter referred to as PL2), polyhydroxystearic acid (see
Japanese Patent Laid-Open No. 2012-184178, hereinafter referred to
as PL3), siliconized polyglycerol (polyglycerin) (see Japanese
Patent Laid-Open No. 2007-161648, hereinafter referred to as PL4),
polyether modified silicone (see Japanese Patent Laid-Open No.
2001-58926, hereinafter referred to as PL5), polyglycerol modified
silicone (see Japanese Patent Laid-Open No. 2004-169015,
hereinafter referred to as PL6), and the like are used. The
micronized powder as in PL1 is difficult to disperse because of its
large surface area and a high aggregation force, and the dispersion
is more difficult particularly in the case where there is a
significant difference in polarity among oil agents, as in the
cosmetic products. The case of using an organic UV absorber that is
a compound with a high polarity and a non-polar oil agent such as
silicone oil applies to the above case. In the case of using
ricinoleic acid, hydroxystearic acid, or polyhydroxystearic acid as
a dispersant, as in PLs2 and 3, in such oil agents, a large amount
of the dispersant needs to be contained therein, where it is sticky
in use, and further its stability over time is also insufficient.
The silicone dispersants used in PLs4, 5, and 6 are low HLB
surfactants in which a hydrophilic moiety is introduced into a
silicone chain and silicone serves as a backbone, and therefore,
with such dispersants, dispersion is easily maintained in a
silicone oil, while a powder tends to aggregate in an organic UV
absorber with a high polarity. Further, in oil-in-water (O/W)
emulsified cosmetic products and water-in-oil (W/O) emulsified
cosmetic products which contain water, the powder dispersibility
may sometimes decrease due to the orientation of the dispersant at
the interface between oil and water. Further, these dispersants
have a high molecular weight, and therefore there are problems in
usability such as the occurrence of stickiness.
SUMMARY OF THE INVENTION
[0006] An object is to provide a powder dispersant having excellent
dispersibility and usability with good spreadability without
stickiness, and a powder dispersion composition and a cosmetic
product containing the powder dispersant.
[0007] As a result of diligent studies in order to solve the above
problems, the inventors have found that a dispersant using a
specific polyglycerol (polyglycerine or polyglycerin) fatty acid
ester can solve the aforementioned problems, so as to accomplish
the invention. That is, the invention relates to a powder
dispersant comprising an ester compound of a polyglycerol having an
average degree of polymerization of the polyglycerol, calculated
from its hydroxyl value, in the range, 2 to 20, at least one
monovalent carboxylic acid, and a divalent carboxylic acid or at
least one derivative thereof.
[0008] The invention also relates to a powder dispersion
composition and a cosmetic product containing the aforementioned
powder dispersant.
[0009] The invention can provide a powder dispersion composition
and a cosmetic product containing the powder dispersant with
improved dispersibility in an oil agent composition having a wide
range of polarity, improved stability over time, and improved
usability without stickiness.
DETAILED DESCRIPTION FOR THE INVENTION
[0010] Hereinafter, an exemplary embodiment of the invention will
be described in detail.
[0011] A powder dispersant of the exemplary embodiment can use an
ester compound of a polyglycerol having an average degree of
polymerization of the polyglycerol, calculated from its hydroxyl
value, in the range 2 to 20, a monovalent carboxylic acid or at
least one derivative thereof, and a divalent carboxylic acid or at
least one derivative thereof.
[0012] The polyglycerol used in the exemplary embodiment is not
particularly limited as long as it is a polyglycerol having an
average polymerization degree of the polyglycerol, calculated from
its hydroxyl value, of 2 to 20. Examples of such a polyglycerol
include diglycerol, triglycerol, tetraglycerol, pentaglycerol,
hexaglycerol, heptaglycerol, octaglycerol, nonaglycerol,
decaglycerol, hexadecaglycerol, octadecaglycerol, and
eicosaglycerol, in which tetraglycerol, pentaglycerol,
hexaglycerol, heptaglycerol, octaglycerol, nonaglycerol, and
decaglycerol are particularly preferable in view of the effects of
the present invention.
[0013] The monovalent carboxylic acid used in the exemplary
embodiment is not particularly limited. Examples of the monovalent
carboxylic acid include acetic acid, propionic acid, butyric acid,
valeric acid, caproic acid, caprylic acid, 2-ethylhexanoic acid,
isononanoic acid, capric acid, lauric acid, myristic acid,
isomyristic acid, palmitic acid, isopalmitic acid, stearic acid,
isostearic acid, ricinoleic acid, oleic acid, linoleic acid,
linolenic acid, arachidic acid, isoarachidic acid, behenic acid,
and erucic acid. Further, acid anhydrides or acid halides thereof
may be used.
[0014] The divalent carboxylic acid used in the exemplary
embodiment is not particularly limited. Examples of the divalent
carboxylic acid include carboxylic acids such as oxalic acid,
malonic acid, succinic acid, glutaric acid, adipic acid, pimelic
acid, suberic acid, azelaic acid, sebacic acid,
dimethyloctadecanedioic acid, eicosanedioic acid, phthalic acid,
isophthalic acid, terephthalic acid, maleic acid, dimer acid,
tetrahydrophthalic acid, octenylsuccinic acid, and
dodecenylsuccinic acid. Further, acid anhydrides or acid halides
thereof may be used.
[0015] The rate of esterification of the polyglycerol ester of the
exemplary embodiment is not particularly limited, and the rate of
esterification is particularly preferably 75% to 100%, in view of
the effects of the present invention.
[0016] The mixing molar ratio of the monovalent carboxylic acid to
the divalent carboxylic acid is not particularly limited, and the
mixing molar ratio of the monovalent carboxylic acid to the
divalent carboxylic acid is preferably 99.99/0.01 to 0.01/99.99,
further preferably 95.0/5.0 to 50/50, in view of the effects of the
present invention.
[0017] As a method for producing the powder dispersant of the
exemplary embodiment, a commonly used esterification reaction can
be used. For example, the esterification reaction can be performed
using paratoluenesulfonic acid, sulfuric acid, hydrochloric acid,
methanesulfonic acid, boron trifluoride-diethyl ether complex,
sodium hydroxide, potassium hydroxide, or the like, as a catalyst,
and using heptane, hexane, cyclohexane, toluene, xylene, or the
like, as a solvent. Alternatively, the esterification can be
performed in the absence of a solvent or in the absence of a
catalyst. The obtained ester can be used as it is or can be used
after being purified by a common method, as needed.
[0018] The powder used in the powder dispersion composition of the
exemplary embodiment is not specifically limited in terms of a
shape such as a spherical shape, a plate shape, and an acicular
shape, a particle size such as a fume particle size, a fine
particle size, and a pigment particle size, or a particle structure
such as a porous particle structure and a non-porous particle
structure, and examples thereof include inorganic powders,
luminescent powders, organic powders, dye powders, metal powders,
and composite powders. That is, examples of the powder used in the
powder dispersion composition of the exemplary embodiment include
white inorganic pigments such as titanium oxide, zinc oxide, cerium
oxide, and barium sulfate, colored inorganic pigments such as iron
oxide, ultramarine blue, iron blue (CoO.Al.sub.2O.sub.3.SiO.sub.2
or Fe.sub.4[Fe(CN).sub.6].sub.3), carbon black, titanium-titanium
oxide sintered materials, chromium oxide, and chromium hydroxide,
white extender powders such as talc, white mica, gold mica, red
mica, black mica, synthetic mica, silk mica, synthetic sericite,
silicon carbide, silicon dioxide, aluminum oxide, magnesium oxide,
zirconium oxide, antimony oxide, diatomite, aluminum silicate,
aluminum magnesium metasilicate, calcium silicate, barium silicate,
magnesium silicate, calcium carbonate, magnesium carbonate,
hydroxyapatite, and boron nitride, clay minerals such as kaolin,
bentonite, smectite, hectorite, and montmorillonite and organically
modified products thereof, luminescent powders such as titanium
oxide coated mica, titanium oxide coated bismuth oxychloride, iron
oxide mica titanium, iron blue treated mica titanium, carmine
treated mica titanium, bismuth oxychloride, fish scales,
polyethylene terephthalate-aluminum-epoxy laminated films,
polyethylene terephthalate-polyolefin laminated films, and titanium
oxide coated glass flakes, copolymer resins such as polyamide
resins, polyethylene resins, polyacrylic resins, polyester resins,
fluorine resins, cellulose resins, polystyrene resins, and
styrene-acrylic copolymer resins, organic polymer resin powders
such as polypropylene resins, silicone resins, and urethane resins,
organic low-molecular weight powders such as zinc stearate and
N-acyllysine, natural organic powders such as silk powder and
cellulose powder, organic pigment powders such as red No. 201, red
No. 202, red No. 205, red No. 226, red No. 228, orange No. 203,
orange No. 204, blue No. 404, and yellow No. 401, organic pigment
powders of zirconium, barium, aluminum rake, or the like, such as
red No. 3, red No. 104, red No. 106, orange No. 204, yellow No. 4,
yellow No. 5, green No. 3, and blue No. 1, and metal powders such
as aluminum powder, gold powder, and silver powder. Further,
complex of these may be used. These powders may be applied to a
surface treatment using one or two or more of fluorine compounds,
silicone compounds, metal soaps, lecithin, hydrogenated lecithin,
collagen, hydrocarbons, higher fatty acids, higher alcohols,
esters, waxes, and surfactants.
[0019] Further, liquid oils are used as the oil agents used in the
powder dispersion composition of the exemplary embodiment, and
examples thereof include hydrocarbons such as liquid paraffin,
liquid isoparaffin, squalane, pristane, .alpha.-olefin oligomer,
and polyethylene, plant fats and oils such as avocado oil, linseed
oil, almond oil, olive oil, cacao butter, carrot oil, cucumber oil,
candlenut oil, grape seed oil, sesame oil, wheat germ oil, rice
bran oil, safflower oil, soybean oil, tea oil, evening primrose
oil, camellia oil, corn oil, rapeseed oil, persic oil, coix seed
oil, palm oil, palm kernel oil, castor oil, sunflower oil, hazelnut
oil, macadamia nut oil, meadowfoam oil, cottonseed oil, peanut oil,
rose hip oil, sasanqua oil, jojoba oil, clove oil, lavender oil,
rosemary oil, turpentine oil, and eucalyptus oil, animal oils such
as orange ruffy oil, ester oils such as avocado oil fatty acid
ethyl, dioctyl adipate, diisopropyl adipate, diisobutyl adipate,
di-2-hexyldecyl adipate, diheptyl undecyl adipate, alkyl benzoate
(C12-15), isostearyl glyceryl, hexyldecyl isostearate, isopropyl
isostearate, octyldodecyl isostearate, isocetyl isostearate,
isostearyl isostearate, glyceryl isostearate, batyl isostearate,
alkyl octanoate (C12-15), ethylene glycol fatty acid ester,
octyldodecyl erucate, pentaerythritol octanoate, cetyl octanoate,
isocetyl octanoate, cetearyl octanoate, isostearyl octanoate, ethyl
oleate, oleyl oleate, ethylene glycol dioleate, glyceryl trioleate,
octyldodecyl oleate, decyl oleate, glyceryl tricaprylate, cetyl
ethylhexanoate, octyldodecyl erucate, cetostearyl ethylhexanoate,
propylene glycol dicaprylate, neopentyl glycol dicaprate, neopentyl
glycol dioctanoate, ethylene glycol dioctanoate, propylene glycol
dicaprate, hexyldecyl neodecanoate, hexyldecyl stearate, isocetyl
stearate, butyl stearate, cetyl isooctanate, diisopropyl sebacate,
diethyl sebacate, diisopropyl dimerate, dialkyl carbonate (C14,15),
pentaerythrityl isostearate, pentaerythrityl tetraoctanoate,
glyceryl triisostearate, diglyceryl diisostearate, glyceryl
trioctanoate, diglyceryl triisostearate, diglyceryl
tetraisostearate, decaglyceryl pentaisostearate, decaglyceryl
nonaisostearate, decaglyceryl decaisostearate, trimethylolpropane
triisostearate, trioctanoin, trimethylolpropane trioctanoate,
hexyldecyl dimethyl octanoate, octyldodecyl dimethyl octanoate,
isononyl isononanoate, isodecyl isononanoate, tridecyl
isononanoate, isotridecyl isononanoate, propylene glycol
dinonanoate, octyl nonanoate, octyl isononanoate, glyceryl
tri(caprylate/caprate), glyceryl trimyristate, cetyl lactate,
myristyl lactate, lauryl lactate, octyldodecyl lactate, isostearyl
palmitate, isopropyl palmitate, octyl palmitate, cetyl palmitate,
isocetyl palmitate, octyl isopalmitate, 2-ethylhexyl
hydroxystearate, isotridecyl myristate, isocetyl myristate,
isostearyl myristate, isopropyl myristate, octyldodecyl myristate,
hexyl laurate, isostearyl laurate, tocopherol linoleate,
octyldodecyl ricinoleate, diisostearyl malate, polypropylene glycol
succinate oligoester, and di-2-ethylhexyl succinate, dimethyl
polysiloxane with a low degree of polymerization, dimethyl
polysiloxane with a high degree of polymerization,
methylphenylpolysiloxane, methylhydrogenpolysiloxane,
octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane,
dodecamethylcyclohexasiloxane, alkyl modified polysiloxane, amino
modified polysiloxane, crosslinked organopolysiloxane, and fluorine
modified polysiloxane.
[0020] Further, the method for obtaining the powder dispersion
composition of the exemplary embodiment is not specifically
limited, but the powder dispersion composition of the exemplary
embodiment can be easily obtained, for example, by a method
comprising dissolving or dispersing the powder dispersant of the
exemplary embodiment in the aforementioned oil agents, adding a
powder, and mixing them using a disperser such as a ball mill, a
bead mill, and a sand mill.
[0021] Further, the dosage form or product form of the cosmetic
product of the exemplary embodiment prepared by adding the powder
dispersant or the powder dispersion composition of the exemplary
embodiment is not specifically limited. The cosmetic product of the
exemplary embodiment can be applied in various forms such as a
water-in-oil type form, oil-in-water type form, oily type form,
water dispersion type form, and powder type form. Furthermore, the
cosmetic product of the exemplary embodiment can be various
products such as skin cosmetics and finishing cosmetics. Examples
of the skin cosmetics may be facial foam/cream, cleansing, massage
cream, pack, lotion, milky lotion, cream, serum, makeup base, and
sunscreen, and examples of finishing cosmetics may be foundation,
white powder, eye shadow, eyeliner, mascara, eyebrow, concealer,
lipstick, lip gloss, and lip balm. Furthermore, sunscreen,
foundation, makeup base, and the like can preferably be used since
such cosmetic product of the exemplary embodiment may have greater
effects.
[0022] Further, the powder dispersant or the powder dispersion
composition of the exemplary embodiment can be used for
pharmaceutical products, paints, inks, optical filters, and the
like, other than the cosmetic applications.
[0023] Moreover, the cosmetic product of the exemplary embodiment
can contain additional compounds such as compounds that are
generally contained in cosmetic products and compounds other than
the powders used in the powder dispersion compositions and the oil
agents as explained above, as long as the effects of the present
invention are not degraded.
[0024] That is, examples of the compounds that can be contained in
the cosmetic product containing the powder dispersant of the
exemplary embodiment include waxes such as solid paraffin, ceresin,
ozokerite, ethylene-propylene copolymer, polyethylene wax,
Fischer-Tropsch wax, candelilla wax, microcrystalline wax, and
jojoba wax, waxes such as beeswax, carnauba wax, lanolin wax, rice
bran wax, insect wax, and Japan wax, fatty acids such as
arachidonic acid, isostearic acid, undecylenic acid, erucic acid,
oleic acid, stearic acid, sebacic acid, palmitic acid, behenic
acid, myristic acid, lauric acid, lanolin fatty acid, linoleic
acid, linolenic acid, capric acid, caprylic acid, hydroxystearic
acid, safflower oil fatty acid, rice bran fatty acid, tall oil
fatty acid, and coconut fatty acid, higher alcohols such as
isostearyl alcohol, oleyl alcohol, octyl dodecanol, octyl alcohol,
decyl alcohol, arachyl alcohol, hexyl decanol, chimyl alcohol,
.beta.-glucan, cholesterol, sitosterol, dihydrocholesterol, stearyl
alcohol, cetanol, cetostearyl alcohol, phytosterol, hexyl decanol,
behenyl alcohol, lauryl alcohol, lanolin alcohol, and myristyl
alcohol, polyhydric alcohols such as erythritol, glycerol, xylitol,
diglycerol, dipropylene glycol, sorbit, trehalose, 1,3-butylene
glycol, propylene glycol, 1,2-pentanediol, polyethylene glycol,
polyoxyethylene glycerol, polypropylene, polyoxypropylene glyceryl
ether, polyoxypropylene diglyceryl ether, polyoxypropylene butyl
ether, polyoxyethylene-polyoxypropylene butyl ether,
polyoxyethylene methyl glucoside, polyglycerol, maltitol, and
mannitol, mucopolysaccharides such as sodium hyaluronate, sodium
acetyl hyaluronate, and sodium chondroitin sulfate, thickening/film
forming agents such as arabic gum, carboxyvinyl polymer, sodium
alginate, propylene glycol alginate, ethyl cellulose, guar
hydroxypropyl trimonium chloride, carrageenan, karaya gum, sodium
carboxymethylcellulose, agar, xanthan gum, guar gum, quince seed
gum, synthetic sodium silicate-magnesium, (vinylpyrrolidone/VA)
copolymer, gellan gum, cyclodextrin, dimethyl distearyl ammonium
hectorite, cellulose derivatives, tamarind gum, dextrin fatty acid
ester, starches, sodium starch phosphate, tragacanth gum,
hydroxyethyl cellulose, pectin, polyacrylic acid amide, sodium
polyacrylate, polyvinyl alcohol, polyvinylpyrrolidone, methyl
cellulose, locust bean gum, pentaerythritol rosinate,
hydroxypropylmethylcellulose, vinyl acetate-vinylpyrrolidone
copolymer, vinyl acetate-crotonic acid copolymer, vinyl methyl
ether-butyl maleate copolymer, crotonic acid-vinyl acetate-vinyl
neodecanoate copolymer, vinylpyrrolidone-styrene copolymer, alkyl
acrylate copolymer, polyacrylic acid, sodium polyacrylate, alkyl
polyacrylate, acrylic acid amide-styrene copolymer, acrylic
acid-acrylic acid amide-ethyl acrylate copolymer, octylamide
acrylate-hydroxypropyl acrylate-butyl aminoethyl methacrylate
copolymer, acrylic resin-alkanol amine solution, hydroxyethyl
acrylate-methoxyethyl acrylate copolymer, cationized cellulose,
cationized guar gum, and methacryloyl ethyl dimethyl dimethyl
betaine-methacryloyl ethyl trimethyl ammonium
chloride-methoxypolyethylene glycol methacrylate copolymer,
silicone oils such as methyl polysiloxane, dimethyl polysiloxane,
methylphenyl polysiloxane, and cyclic silicone oil, silicone film
forming agents such as trimethylsiloxysilicate and crosslinked
methylpolysiloxane, silicone derivatives such as aminopropyl
dimethicone, alkyl methicone, (dimethicone/vinyl dimethicone)
crosspolymer, (stearoxymethicone/dimethicone) copolymer,
(dimethylsiloxane/methylcetyloxysiloxane) copolymer, dimethicone,
stearyl dimethicone, cetyl dimethicone copolymer, methyl hydrogen
polysiloxane, diphenyl dimethicone, phenyl trimethicone, polyether
modified organopolysiloxane, polyoxyalkylene alkyl methyl
polysiloxane-methyl polysiloxane copolymer, and alkoxy modified
polysiloxane, fluorine oils such as fluorine modified
organopolysiloxane, perfluorodecane, perfluorooctane, and
perfluoropolyether, oily gelling agents such as dextrin fatty acid
ester, sucrose fatty acid ester, starch fatty acid ester,
12-hydroxystearic acid, aluminum isostearate, and calcium stearate,
anionic surfactants such as alkyl sulfate, polyoxyethylene alkyl
ether sulfate, N-acylamino acid salts, alkyl ether carboxylate,
fatty acid soaps, alkyl phosphate, polyoxyethylene alkyl ether
phosphate, and N-acyl taurine salt, amphoteric surfactants such as
betaine acetate amphoteric surfactant, imidazoline amphoteric
surfactant, alkylamidopropylbetaine amphoteric surfactant,
alkylhydroxysulfobetaine amphoteric surfactant,
alkylcarboxymethylhydroxyethyl imidazolinium betaine amphoteric
surfactant, and alkyldimethylamine oxide, nonionic surfactants such
as propylene glycol fatty acid ester, glycerol fatty acid ester,
polyglycerol fatty acid ester, polyoxyethylene glycerol fatty acid
ester, sucrose fatty acid ester, sorbitan fatty acid ester,
polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol
fatty acid ester, polyoxyethylene lanolin, polyoxyethylene lanolin
alcohol, polyoxyethylene sorbitol beeswax, polyoxyethylene castor
oil, polyoxyethylene hardened castor oil, polyoxyethylene sterol,
polyoxyethylene hydrogenated sterol, polyoxyethylene alkyl ether,
polyoxyethylene polyoxypropylene alkyl ether, polyethylene glycol
fatty acid ester, alkyl glyceryl ether, alkyl polyglycoside, and
alkyl alkanol amide, cationic surfactants such as alkyl ammonium
salt and amidoamine, and lecithin derivatives such as hydrogenated
soybean phospholipid and hydroxylated soybean phospholipid.
[0025] Further, the examples include alcohols such as ethanol and
isopropyl alcohol, chelating agents such as edetate,
hydroxyethanediphosphonate, polyphosphate, and gluconic acid,
preservatives such as benzoate, photosensitizer, parabens,
phenoxyethanol, salicylic acid, sorbic acid, and
isopropylmethylphenol, whitening agents such as arbutin, ellagic
acid, kojic acid, and ascorbate derivatives, vitamins, UV
absorbers, amino acids, glycyrrhizic acid derivatives, plant
extracts, perfumes, essential oils, and pH adjusters.
EXAMPLES
[0026] Hereinafter, the exemplary embodiment will be described more
specifically by way of examples and comparative examples, but the
scope of the exemplary embodiment is not limited at all by these
examples.
[0027] [Powder Dispersant]
Example 1
[0028] 92.8 g (0.559 mol) of diglycerol and 409.7 g (1.443 mol) of
isostearic acid were put into a reaction chamber, and 0.25 g of
sodium hydroxide was added thereto, for performing a reaction under
a nitrogen stream at 240.degree. C. for 4 hours, and 477 g of an
esterification reaction product was obtained. 477 g of the
aforementioned ester and 27.7 g (0.235 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 75% was obtained.
Example 2
[0029] 99.1 g (0.413 mol) of triglycerol and 403.4 g (1.420 mol) of
isostearic acid were put into a reaction container, and 0.25 g of
sodium hydroxide was added thereto, for performing a reaction under
a nitrogen stream at 240.degree. C. for 5 hours, and 477 g of an
esterification reaction product was obtained. 477 g of the
aforementioned ester and 27.3 g (0.231 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 80% was obtained.
Example 3
[0030] 100.5 g (0.320 mol) of tetraglycerol and 401.9 g (1.415 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto, for performing a reaction
under a nitrogen stream at 240.degree. C. for 6 hours, and 477 g of
an esterification reaction product was obtained. 477 g of the
aforementioned ester and 27.2 g (0.231 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 86% was obtained.
Example 4
[0031] 107.0 g (0.232 mol) of hexaglycerol and 394.8 g (1.390 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto, for performing a reaction
under a nitrogen stream at 240.degree. C. for 7 hours, and 477 g of
an esterification reaction product was obtained. 477 g of the
aforementioned ester and 27.3 g (0.232 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 5
[0032] 110.1 g (0.145 mol) of decaglycerol and 390.2 g (1.374 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto, for performing a reaction
under a nitrogen stream at 240.degree. C. for 8 hours, and 476 g of
an esterification reaction product was obtained. 476 g of the
aforementioned ester and 28.8 g (0.244 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 92% was obtained.
Example 6
[0033] 132.5 g (0.287 mol) of hexaglycerol and 285.1 g (1.004 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto, for performing a reaction
under a nitrogen stream at 240.degree. C. for 7 hours, and 400 g of
an esterification reaction product was obtained. 400 g of the
aforementioned ester and 118.5 g (1.004 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 7
[0034] 113.1 g (0.245 mol) of hexaglycerol and 367.1 g (1.293 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto for performing a reaction
under a nitrogen stream at 240.degree. C. for 7 hours, and 457 g of
an esterification reaction product was obtained. 457 g of the
aforementioned ester and 50.8 g (0.431 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 8
[0035] 101.8 g (0.220 mol) of hexaglycerol and 417.3 g (1.469 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto, for performing a reaction
under a nitrogen stream at 240.degree. C. for 8 hours, and 493 g of
an esterification reaction product was obtained. 493 g of the
aforementioned ester and 8.8 g (0.074 mol) of succinic acid were
put in a chamber, for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 9
[0036] 175.3 g (0.379 mol) of hexaglycerol and 327.8 g (2.276 mol)
of caprylic acid were put into a reaction container, and 0.25 g of
sodium hydroxide was added thereto, for performing a reaction under
a nitrogen stream at 240.degree. C. for 7 hours, and 462 g of an
esterification reaction product was obtained. 462 g of the
aforementioned ester and 44.8 g (0.379 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 10
[0037] 175.3 g (0.379 mol) of hexaglycerol and 327.8 g (2.276 mol)
of 2-ethylhexanoic acid were put into a reaction container, and
0.25 g of sodium hydroxide was added thereto, for performing a
reaction under a nitrogen stream at 240.degree. C. for 7 hours, and
462 g of an esterification reaction product was obtained. 462 g of
the aforementioned ester and 44.8 g (0.379 mol) of succinic acid
were put in a chamber for performing a reaction under a nitrogen
stream at 100.degree. C. for 3 hours, and 500 g of a reaction
product having a rate of esterification of 88% was obtained.
Example 11
[0038] 139.7 g (0.302 mol) of hexaglycerol and 362.8 g (1.814 mol)
of lauric acid were put into a reaction container, and 0.25 g of
sodium hydroxide was added thereto, for performing a reaction under
a nitrogen stream at 240.degree. C. for 7 hours, and 470 g of an
esterification reaction was obtained product. 470 g of the
aforementioned ester and 35.7 g (0.302 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 12
[0039] 107.0 g (0.232 mol) of hexaglycerol and 394.8 g (1.390 mol)
of stearic acid were put into a reaction container, and 0.25 g of
sodium hydroxide was added thereto, reaction under a nitrogen
stream at 240.degree. C. for 7 hours, and 477 g of an
esterification reaction product was obtained. 477 g of the
aforementioned ester and 27.3 g (0.232 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 13
[0040] 107.6 g (0.233 mol) of hexaglycerol and 394.2 g (1.398 mol)
of oleic acid were put into a reaction container, and 0.25 g of
sodium hydroxide was added thereto, to preform a reaction under a
nitrogen stream at 240.degree. C. for 7 hours, and 477 g of an
esterification reaction product was obtained. 477 g of the
aforementioned ester and 27.5 g (0.233 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 14
[0041] 92.6 g (0.200 mol) of hexaglycerol and 409.0 g (1.203 mol)
of behenic acid were put into a reaction container, and 0.25 g of
sodium hydroxide was added thereto, for performing a reaction under
a nitrogen stream at 240.degree. C. for 7 hours, and 480 g of an
esterification reaction product was obtained. 480 g of the
aforementioned ester and 23.7 g (0.200 mol) of succinic acid were
put in a chamber for performing a reaction under a nitrogen stream
at 100.degree. C. for 3 hours, and 500 g of a reaction product
having a rate of esterification of 88% was obtained.
Example 15
[0042] 101.9 g (0.220 mol) of hexaglycerol and 375.7 g (1.323 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto, for performing a reaction
under a nitrogen stream at 240.degree. C. for 7 hours, and 454 g of
an esterification reaction product was obtained. 454 g of the
aforementioned ester and 50.3 g (0.220 mol) of octenylsuccinic acid
were put in a chamber for performing a reaction under a nitrogen
stream at 100.degree. C. for 3 hours, and 500 g of a reaction
product having a rate of esterification of 88% was obtained.
Example 16
[0043] 105.7 g (0.229 mol) of hexaglycerol and 389.8 g (1.372 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto, for performing a reaction
under a nitrogen stream at 240.degree. C. for 7 hours, and 471 g of
an esterification reaction product was obtained. 471 g of the
aforementioned ester and 33.4 g (0.229 mol) of adipic acid were put
in a chamber for performing a reaction under a nitrogen stream at
240.degree. C. for 5 hours, and 500 g of a reaction product having
a rate of esterification of 88% was obtained.
Comparative Example 1
[0044] 99.4 g (0.215 mol) of hexaglycerol and 427.7 g (1.506 mol)
of isostearic acid were put into a reaction container, and 0.25 g
of sodium hydroxide was added thereto, for performing a reaction
under a nitrogen stream at 240.degree. C. for 7 hours, and 500 g of
a reaction product having a rate of esterification of 88% was
obtained.
Comparative Example 2
[0045] 198.8 g (0.43 mol) of hexaglycerol and 355.4 g (3.012 mol)
of succinic acid were put into a reaction container, and 0.25 g of
sodium hydroxide was added thereto, to perform a reaction under a
nitrogen stream at 100.degree. C. for 5 hours, and 500 g of a
reaction product having a rate of esterification of 88% was
obtained.
[0046] [Powder Dispersion Composition]
Examples 17 to 32
[0047] 5.0 g of the esterification reaction product obtained in
each of Examples 1 to 16, 45.0g of isotridecyl isononanoate, and
50.0 g of titanium oxide fine particles (aluminum hydroxide,
stearic acid treated product) were dispersed using a bead mill, and
titanium oxide dispersion compositions of Examples 17 to 32 were
obtained.
Comparative Example 3 and 4
[0048] Using the esterification reaction products obtained in
Comparative Examples 1 and 2 instead of those obtained in Examples
1 to 16, the dispersion was performed in the same manner, and
titanium oxide dispersion compositions of Comparative Examples 3
and 4 were obtained.
Examples 33 to 36
[0049] 5.0 g of the esterification reaction product obtained in
each of Examples 4, 10, 13, and 15, 35.0 g of isotridecyl
isononanoate, and 60.0 g of zinc oxide fine particles (silicone
treated product) were dispersed in the same manner, zinc oxide
dispersion compositions of Examples 33 to 36 were obtained.
Comparative Examples 5 and 6
[0050] Using the esterification reaction products obtained in
Comparative Examples 1 and 2, the dispersion was performed in the
same manner, and zinc oxide dispersion compositions of Comparative
Examples 5 and 6 were obtained.
Examples 37 to 39
[0051] 5.0 g of the esterification reaction product obtained in
Example 4, 45.0 g of an oil agent, and 50.0 g of titanium oxide
fine particles (aluminum hydroxide, stearic acid treated product)
were dispersed using a bead mill, titanium oxide dispersion
compositions of Examples 37 to 39 were obtained.
[0052] The dispersibility of the powder dispersion compositions
obtained as above was observed by a microscope to evaluate the
degree of aggregation. The results are shown in Tables 1-4.
Hereinafter, evaluations of the Examples and the Compatible
Examples are explained any one of "Excellent (shown as "{circumflex
over (.largecircle.)}" in in the tables)", "Good (shown as
".largecircle." in in the tables)", "Fail (shown as ".DELTA." in in
the tables)", and "Poor (shown as "x" in in the tables)" as their
evaluation indexes. The Examples of the invention have any one of
"Excellent", "Good" or "Fair" evaluation, while the Compatible
Examples have "Poor" evaluation.
(Evaluation Criteria)
[0053] Excellent: No aggregation observed [0054] Good: Slight
aggregation observed [0055] Fair: A little aggregation observed
[0056] Poor: Aggregation observed
[0057] The stability over time when the powder dispersion
compositions obtained as above were allowed to stand still at
25.degree. C. for one day was observed by a microscope to evaluate
the degree of aggregation. The results are shown in Tables 1-4.
(Evaluation Criteria)
[0058] Excellent: No aggregation observed [0059] Good: Slight
aggregation observed [0060] Fair: A little aggregation observed
[0061] Poor: Aggregation observed
[0062] The stickiness of the powder dispersion compositions
obtained as above was evaluated by 10 panelists. The results are
shown in Tables 1-4.
(Evaluation Criteria)
[0063] Excellent: 9 or more out of 10 people answered "Non-sticky".
[0064] Good: 7 or more out of 10 people answered "Non-sticky".
[0065] Fair: 5 or more out of 10 people answered "Non-sticky".
[0066] Poor: 4 or less out of 10 people answered "Non-sticky".
TABLE-US-00001 [0066] TABLE 1 Example 17 18 19 20 21 22 23 24 25
Reaction 1 2 3 4 5 6 7 8 9 Product (Example) Molar ratio * 86/14
86/14 86/14 86/14 86/14 50/50 75/25 95/5 86/14 Dispersibility
.largecircle. .largecircle. .circleincircle. .circleincircle.
.circleincircle. .largecircle. .circleincircle. .circleincircle.
.largecircle. Stability .largecircle. .largecircle.
.circleincircle. .circleincircle. .circleincircle. .circleincircle.
.circleincircle. .circleincircle. .largecircle. over time
Greasiness .circleincircle. .circleincircle. .circleincircle.
.circleincircle. .largecircle. .circleincircle. .circleincircle.
.largecircle. .circleincircle.
TABLE-US-00002 TABLE 2 Example Comparative Example 26 27 28 29 30
31 32 3 4 Reaction 10 11 12 13 14 15 16 1 2 Product (Example) Molar
ratio * 86/14 86/14 86/14 86/14 86/14 86/14 86/14 100/0 0/100
Dispersibility .circleincircle. .largecircle. .circleincircle.
.circleincircle. .circleincircle. .circleincircle. .circleincircle.
X X Stability .circleincircle. .largecircle. .circleincircle.
.circleincircle. .circleincircle. .circleincircle. .circleincircle.
X X over time Greasiness .circleincircle. .circleincircle. .DELTA.
.circleincircle. .DELTA. .circleincircle. .largecircle.
.largecircle. .largecircle.
TABLE-US-00003 TABLE 3 Example Comparative Example 33 34 35 36 5 6
Reaction 4 10 13 15 1 2 Product (Example) Molar ratio* 86/14 86/14
86/14 86/14 100/0 0/100 Dispersibility .circleincircle.
.circleincircle. .circleincircle. .circleincircle. X X Stability
.circleincircle. .circleincircle. .circleincircle. .circleincircle.
X X over time Greasiness .circleincircle. .circleincircle.
.circleincircle. .circleincircle. .largecircle. .largecircle.
TABLE-US-00004 TABLE 4 Example 37 38 39 Reaction 4 4 4 Product
(Example) Molar 86/14 86/14 86/14 ratio * Oil agent Liquid
Decamethylcyclo- Glycery tri paraffin pentasiloxane
(caprylate/caprate) Dispers- .circleincircle. .circleincircle.
.circleincircle. ibility Stability .circleincircle.
.circleincircle. .circleincircle. over time Greasiness
.circleincircle. .circleincircle. .circleincircle. * Mixing molar
ratio of monovalent carboxylic acid to divalent carboxylic acid
[0067] As shown in Tables 1-4, the powder dispersion compositions
of Examples 17 to 39 using the powder dispersants of Examples 1 to
16 had excellent dispersibility and excellent stability over time
with no stickiness. In contrast, the powder dispersion compositions
of Comparative Examples 3 to 6 using Comparative Examples 1 to 2
had a low dispersibility.
Example 40
Sunscreen Water-in-Oil (W/O) Milky Lotion
(Compounds) (wt %)
[0068] 1. Glyceryl tri(caprylate/caprate): 4.0 [0069] 2.
Decamethylcyclopentasiloxane: 14.0 [0070] 3. Crosslinked polyether
modified silicone crosslinked product (Note 1): 3.0 [0071] 4.
Alkyl-polyether co-modified silicone (Note 2): 1.5 [0072] 5.
Titanium oxide dispersion composition (Example 20): 25.0 [0073] 6.
Zinc oxide dispersion composition (Example 33): 35.0 [0074] 7.
Pentylene glycol: 1.0 [0075] 8. 1,3-Butylene glycol: 3.0 [0076] 9.
Sodium citrate: 0.2 [0077] 10. Magnesium sulfate: 0.5 [0078] 11.
Preservative: appropriate quantity (less than 1 wt %) [0079] 12.
purified water: Balance [0080] (Note 1) Crosslinked polyether
modified silicone crosslinked product: KSG-240 (manufactured by
Shin-Etsu Chemical Co., Ltd.) [0081] (Note 2) Alkyl-polyether
co-modified silicone: KF-6038 (manufactured by Shin-Etsu Chemical
Co., Ltd.)
[0082] (Production Method) [0083] A: Uniformly mixing compounds 7
to 12. [0084] B: Making compounds 1 to 4 uniform, and adding A, and
emulsifying. [0085] C: Adding compounds 5 and 6 to B, and mixing
them to obtain sunscreen W/O milky lotion.
[0086] Example 40 according to the exemplary embodiment was a
sunscreen W/O milky lotion having usability without powder
aggregation, with excellent dispersion stability, and further with
good spreadability to the skin, with smoothness without stickiness,
with a high transparency, without powdery finish, and with
excellent cosmetic durability.
Example 41
Sunscreen W/O Milky Lotion
(Compounds) (wt %)
[0087] 1. Decamethylcyclopentasiloxane: 15.0 [0088] 2. Neopentyl
glycol dicaprate: 8.0 [0089] 3. Ethylhexyl methoxycinnamate: 6.0
[0090] 4. Diethylamino hydroxybenzoyl hexyl benzoate: 1.0 [0091] 5.
Alkyl-polyether co-modified silicone (Note 3): 1.5 [0092] 6.
Titanium oxide dispersion composition (Example 23): 10.0 [0093] 7.
Zinc oxide dispersion composition (Example 34): 20.0 [0094] 8.
1,3-Butylene glycol: 4.0 [0095] 9. Preservative: appropriate
quantity [0096] 10. Purified water: Balance [0097] (Note 3)
Alkyl-polyether co-modified silicone: ES-5300 (manufactured by Dow
Corning Toray Co., Ltd.)
[0098] (Production Method) [0099] A: Uniformly mixing compounds 8
to 10. [0100] B: Heating compounds 1 to 5 to make them uniform,
followed by addition of A, to perform emulsification. [0101] C:
Adding compounds 6 and 7 to B, followed by mixing, to obtain
sunscreen W/O milky lotion.
[0102] Example 41 according to the exemplary embodiment was a
sunscreen W/O milky lotion having usability without powder
aggregation, with excellent dispersion stability, and further with
good spreadability to the skin, with smoothness without stickiness,
with a high transparency, without powdery finish, and with
excellent cosmetic durability.
Example 42
Sunscreen W/O Cream
(Compounds) (wt %)
[0103] 1. Polyglyceryl-2 isostearate (Note 4): 1.2 [0104] 2.
Polyglyceryl-6 polyricinoleate (Note 5): 0.2 [0105] 3.
Polyglyceryl-10 laurate (Note 6): 0.15 [0106] 4. Macadamia nut oil
polyglyceryl-6 estersbehenate (Note 7): 1.0 [0107] 5. Isododecane:
10.45 [0108] 6. Titanium oxide dispersion composition (Example 29):
20.0 [0109] 7. Ethylhexyl methoxycinnamate: 7.5 [0110] 8.
Diethylamino hydroxybenzoyl hexyl benzoate: 2.5 [0111] 9.
Disteardimonium hectorite: 1.0 [0112] 10. 1,3-Butylene glycol: 10.0
[0113] 11. Sodium chloride: 0.5 [0114] 12. Preservative:
appropriate quantity [0115] 13. Purified water: Balance [0116]
(Note 4) S Face IS-201P, manufactured by SAKAMOTO YAKUHIN KOGYO
CO., LTD. [0117] (Note 5) S Face CR-1001, manufactured by SAKAMOTO
YAKUHIN KOGYO CO., LTD. [0118] (Note 6) S Face L-1001, manufactured
by SAKAMOTO YAKUHIN KOGYO CO., LTD. [0119] (Note 7) S Face VL-211,
manufactured by SAKAMOTO YAKUHIN KOGYO CO., LTD.
[0120] (Production Method) [0121] A: Heating compounds 1 to 9 to
make them uniform. [0122] B: Heating compounds 10 to 13 to make
them uniform. [0123] C: Adding B to A to perform emulsification,
followed by cooling, to obtain sunscreen W/O cream.
[0124] Example 42 according to the exemplary embodiment was a
sunscreen W/O cream having usability without powder aggregation,
with excellent dispersion stability, and further with good
spreadability to the skin, with smoothness without stickiness, with
a high transparency, without powdery finish, and with excellent
cosmetic durability.
Example 43
Sunscreen Oil-in Water (O/W) Cream
(Compounds) (wt %)
[0125] 1. Glyceryl tri(caprylate/caprate): 5.0 [0126] 2. Titanium
oxide dispersion composition (Example 31): 25.0 [0127] 3. Zinc
oxide dispersion composition (Example 35): 20.0 [0128] 4.
(Hydroxyethyl acrylate/sodium acryloyldimethyltaurate) copolymer
(Note 8): 1.0 [0129] 5. Sorbitan stearate: 1.5 [0130] 6. Isostearic
acid PEG-60 glyceryl: 1.5 [0131] 7. Coconut oil fatty acid sucrose:
0.5 [0132] 8. 1,3-butylene glycol: 8.0 [0133] 9. Glycerol: 4.0
[0134] 10. 2 wt % Xanthan gum: 2.0 [0135] 11. Preservative:
appropriate quantity [0136] 12. Purified water: Balance [0137]
(Note 8) (Hydroxyethyl acrylate/sodium acryloyldimethyltaurate)
copolymer: Simulgel NS (manufactured by SEPPIC Inc.)
[0138] (Production Method) [0139] A: Mixing compounds 1 to 3,
followed by heating. [0140] B: Heating compounds 4 to 12 to make
them uniform. [0141] C: Adding A to B to perform emulsification,
followed by cooling, to obtain sunscreen O/W cream.
[0142] Example 43 according to the exemplary embodiment was a
sunscreen O/W cream having usability without powder aggregation,
with excellent dispersion stability, and further with good
spreadability to the skin, with smoothness without stickiness, with
a high transparency, without powdery finish, and with excellent
cosmetic durability.
Example 44
W/O Cream Foundation
(Compounds) (wt %)
[0143] 1. Polyglyceryl-2 isostearate (Note 4): 1.2 [0144] 2.
Polyglyceryl-6 polyricinoleate (Note 5): 0.2 [0145] 3.
Polyglyceryl-10 laurate (Note 6): 0.15 [0146] 4. Macadamia nut oil
polyglyceryl-6 estersbehenate (Note 7): 1.0 [0147] 5.
Cyclopentasiloxane: 10.55 [0148] 6. Isotridecyl isononanoate: 5.0
[0149] 7. Disteardimonium hectorite: 1.0 [0150] 8. Powder
dispersant (Example 4): 0.4 [0151] 9. Isotridecyl isononanoate: 4.0
[0152] 10. Pigment (silicone treated): 8.5 [0153] 11. Diglycerol
(Note 9): 3.0 [0154] 12. 1,3-Butylene glycol: 10.0 [0155] 13.
Preservative: appropriate quantity [0156] 14. Perfume: appropriate
quantity [0157] 15. Purified water: Balance [0158] (Note 9)
Diglycerol 801, manufactured by SAKAMOTO YAKUHIN KOGYO CO.,
LTD.
[0159] (Production Method) [0160] A: Heating compounds 1 to 7 to
make them uniform. [0161] B: Mixing compounds 8 to 10 to uniformly
disperse them. [0162] C: Adding A to B to be dispersed. [0163] D:
Heating compounds 11 to 15 to be uniformly mixed. [0164] E:
Gradually adding D to C under stirring to perform emulsification,
followed by cooling, to obtain W/O cream foundation.
[0165] Example 44 according to the exemplary embodiment was an O/W
cream foundation having excellent dispersion stability and fine
texture without aggregation of powder, further having good
spreadability to the skin and smoothness without stickiness or
oiliness, giving moist, fresh, and refreshed feeling of use, and
having good cosmetic retention and excellent stability without
changes due to temperature or time.
INDUSTRIAL APPLICABILITY
[0166] A cosmetic product having good spreadability with less
stickiness can be provided by mixing the powder dispersant and the
powder dispersion composition of the exemplary embodiment in the
cosmetic product. The powder dispersant of the exemplary embodiment
can be used for a wide range of applications such as skin cosmetics
including facial foam/cream, cleansing, massage cream, pack,
lotion, milky lotion, cream, serum, makeup base, and sunscreen, and
finishing cosmetics including foundation, white powder, eye shadow,
eyeliner, mascara, eyebrow, concealer, lipstick, lip gloss, and lip
balm.
* * * * *